tests: check decoding of TCA_STATS2 netlink attribute of tcmsg

* tests/nlattr_tc_stats.c: New file.
* tests/gen_tests.in (nlattr_tc_stats): New entry.
* tests/pure_executables.list: Add nlattr_tc_stats.
* tests/.gitignore: Likewise.

diff --git a/tests/.gitignore b/tests/.gitignore
index 3d1631e11e8b4d6a24fb751106baca4c7cd83657..c6bfc02f71ae0f7d2df0679f2a96de66d5cbf93e 100644 (file)
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -240,6 +240,7 @@ nlattr_packet_diag_msg
 nlattr_rtgenmsg
 nlattr_rtmsg
 nlattr_smc_diag_msg
+nlattr_tc_stats
 nlattr_tcamsg
 nlattr_tcmsg
 nlattr_unix_diag_msg

diff --git a/tests/gen_tests.in b/tests/gen_tests.in
index 8592e28ba8b2b765f7107b8244589f707fc4c65e..117f0a1020e240a78d18350f7115aea7119c18cd 100644 (file)
--- a/tests/gen_tests.in
+++ b/tests/gen_tests.in
@@ -219,6 +219,7 @@ nlattr_packet_diag_msg              +netlink_sock_diag-v.sh
 nlattr_rtgenmsg                        +netlink_sock_diag.test
 nlattr_rtmsg                   +netlink_sock_diag.test
 nlattr_smc_diag_msg            +netlink_sock_diag.test
+nlattr_tc_stats                        +netlink_sock_diag.test
 nlattr_tcamsg                  +netlink_sock_diag.test
 nlattr_tcmsg                   +netlink_sock_diag.test
 nlattr_unix_diag_msg           +netlink_sock_diag.test

diff --git a/tests/nlattr_tc_stats.c b/tests/nlattr_tc_stats.c
new file mode 100644 (file)
index 0000000..dd76cc7
--- /dev/null
+++ b/tests/nlattr_tc_stats.c
@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
+ * Copyright (c) 2017 The strace developers.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "tests.h"
+
+#ifdef HAVE_STRUCT_GNET_STATS_BASIC
+
+# include <stdio.h>
+# include <stddef.h>
+# include "test_nlattr.h"
+# include <linux/gen_stats.h>
+# include <linux/rtnetlink.h>
+
+const unsigned int hdrlen = sizeof(struct tcmsg);
+
+static void
+init_tcmsg(struct nlmsghdr *const nlh, const unsigned int msg_len)
+{
+       SET_STRUCT(struct nlmsghdr, nlh,
+               .nlmsg_len = msg_len,
+               .nlmsg_type = RTM_GETQDISC,
+               .nlmsg_flags = NLM_F_DUMP
+       );
+
+       struct tcmsg *const msg = NLMSG_DATA(nlh);
+       SET_STRUCT(struct tcmsg, msg,
+               .tcm_family = AF_UNIX,
+               .tcm_ifindex = ifindex_lo()
+       );
+
+       struct nlattr *const nla = NLMSG_ATTR(nlh, sizeof(*msg));
+       SET_STRUCT(struct nlattr, nla,
+               .nla_len = msg_len - NLMSG_SPACE(hdrlen),
+               .nla_type = TCA_STATS2
+       );
+}
+
+static void
+print_tcmsg(const unsigned int msg_len)
+{
+       printf("{len=%u, type=RTM_GETQDISC, flags=NLM_F_DUMP"
+              ", seq=0, pid=0}, {tcm_family=AF_UNIX"
+              ", tcm_ifindex=" IFINDEX_LO_STR
+              ", tcm_handle=0, tcm_parent=0, tcm_info=0}"
+              ", {{nla_len=%u, nla_type=TCA_STATS2}",
+              msg_len, msg_len - NLMSG_SPACE(hdrlen));
+}
+
+int
+main(void)
+{
+       skip_if_unavailable("/proc/self/fd/");
+
+       const int fd = create_nl_socket(NETLINK_ROUTE);
+       void *nlh0 = tail_alloc(NLMSG_SPACE(hdrlen));
+
+       static char pattern[4096];
+       fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
+
+       static const struct gnet_stats_basic sb = {
+               .bytes = 0xabcdebdafefeadeb,
+               .packets = 0xbdcdeabf
+       };
+       char buf[offsetofend(struct gnet_stats_basic, packets)];
+       memcpy(buf, &sb, sizeof(buf));
+       TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen,
+                                 init_tcmsg, print_tcmsg,
+                                 TCA_STATS_BASIC, pattern, buf,
+                                 PRINT_FIELD_U("{", sb, bytes);
+                                 PRINT_FIELD_U(", ", sb, packets);
+                                 printf("}"));
+
+#ifdef HAVE_STRUCT_GNET_STATS_RATE_EST
+       static const struct gnet_stats_rate_est est = {
+               .bps = 0xebcdaebd,
+               .pps = 0xabdceade,
+       };
+       TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen,
+                                 init_tcmsg, print_tcmsg,
+                                 TCA_STATS_RATE_EST, pattern, est,
+                                 PRINT_FIELD_U("{", est, bps);
+                                 PRINT_FIELD_U(", ", est, pps);
+                                 printf("}"));
+#endif
+
+#ifdef HAVE_STRUCT_GNET_STATS_QUEUE
+       static const struct gnet_stats_queue qstats = {
+               .qlen = 0xabcdeabd,
+               .backlog = 0xbcdaebad,
+               .drops = 0xcdbeaedb,
+               .requeues = 0xdebaefab,
+               .overlimits = 0xefaebade
+       };
+       TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen,
+                                 init_tcmsg, print_tcmsg,
+                                 TCA_STATS_QUEUE, pattern, qstats,
+                                 PRINT_FIELD_U("{", qstats, qlen);
+                                 PRINT_FIELD_U(", ", qstats, backlog);
+                                 PRINT_FIELD_U(", ", qstats, drops);
+                                 PRINT_FIELD_U(", ", qstats, requeues);
+                                 PRINT_FIELD_U(", ", qstats, overlimits);
+                                 printf("}"));
+#endif
+
+#ifdef HAVE_STRUCT_GNET_STATS_RATE_EST64
+       static const struct gnet_stats_rate_est64 est64 = {
+               .bps = 0xacbdcdefafecaebf,
+               .pps = 0xcdabeabdfeabceaf
+       };
+       TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen,
+                                 init_tcmsg, print_tcmsg,
+                                 TCA_STATS_RATE_EST64, pattern, est64,
+                                 PRINT_FIELD_U("{", est64, bps);
+                                 PRINT_FIELD_U(", ", est64, pps);
+                                 printf("}"));
+#endif
+
+       puts("+++ exited with 0 +++");
+       return 0;
+}
+
+#else
+
+SKIP_MAIN_UNDEFINED("HAVE_STRUCT_GNET_STATS_BASIC")
+
+#endif

diff --git a/tests/pure_executables.list b/tests/pure_executables.list
index dade57b060912c75c035602e45a488990489d2a1..2878d3a66aaf685019bba65a35a57142e70a8c25 100755 (executable)
--- a/tests/pure_executables.list
+++ b/tests/pure_executables.list
@@ -202,6 +202,7 @@ nlattr_packet_diag_msg
 nlattr_rtgenmsg
 nlattr_rtmsg
 nlattr_smc_diag_msg
+nlattr_tc_stats
 nlattr_tcamsg
 nlattr_tcmsg
 nlattr_unix_diag_msg